Pretty Darned AFRAID - but not Quite Enough
Fear is the most difficult emotion to portray, both by actors and artists. It can be confused with surprise, sadness, and disgust. In tests I did with researchers at the University of Washington, it took us literally hundreds of attempts to create animated characters with fear faces that could get 90% agreement using internet-based Mechanical Turk responses, and the examples that worked were extreme versions of terror, with bulging eyes and a radically widened mouth.